APA (7th ed.) Citation

Keith, T. E. C., Beeson, M. H., & Bargar, K. E. (1982). Geologic map of the Mount Hood Wilderness, Clackamas and Hood River Counties, Oregon. The Survey.

Chicago Style (17th ed.) Citation

Keith, Terry E. C., Melvin H. Beeson, and Keith E. Bargar. Geologic Map of the Mount Hood Wilderness, Clackamas and Hood River Counties, Oregon. Reston, Va.: The Survey, 1982.

MLA (9th ed.) Citation

Keith, Terry E. C., et al. Geologic Map of the Mount Hood Wilderness, Clackamas and Hood River Counties, Oregon. The Survey, 1982.